Diversity and identification of mycorrhizal fungi of tropical Comarostaphylis arbutoides

热带熊果树菌根真菌多样性及鉴定

• 批准号: 169319823
• 负责人: Dr. Babette Münzenberger
• 金额: --
• 依托单位: Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) e.V.
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2010
• 资助国家: 德国
• 起止时间: 2009-12-31 至 2014-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/169319823?language=en
• 关键词: Diversity; identification; mycorrhizal; fungi; tropical

Arbutoid mycorrhizal plants are commonly found as understory vegetation in forests worldwide where ectomycorrhiza forming trees occur. Comarostaphylis arbutoides is a tropical woody plant that forms arbutoid mycorrhiza. This plant, which is colonised by ectomycorrhizal (ECM) fungi from ectotrophic forest trees nearby, is a refuge for these fungi after forest clearance of the economically important forest trees. As Costa Rica is a hot spot of global plant diversity and probably of diversity of tropical ectomycorrhizal fungi, C. arbutoides ssp. costaricensis as a refuge plant for these fungi was chosen. C. arbutoides is endemic to the Cordillera de Talamanca of Costa Rica. Diversity and identification of ECM fungi of C. arbutoides from three sub-alpine forest sites in the Cordillera de Talamanca, where Quercus costaricensis and C. arbutoides grow together, shall be investigated. The first aim of the project is to investigate the taxonomic diversity of the arbutoid mycorrhizal morphotypes of C. arbutoides and compare it with the diversity of Arctostaphylos uva-ursi, which is native amongst others in the Austrian alpine and sub-alpine region. The second aim is to study the exploration types to get information on the functional diversity of the morphotypes. The third aim is to identify the ectomycorrhizal fungi using molecular methods. The fourth aim is to describe the anatomy and ultrastructure of arbutoid morphotypes of C. arbutoides. The knowledge of ectomycorrhizal fungi and soil biology of the tropics may deliver insight into climate change.

丛枝状菌根植物通常被发现作为林下植被在世界各地的森林外生菌根形成的树木发生。拟杨梅状丛枝木是一种热带木本植物，形成杨梅状菌根。这种植物，这是殖民外生菌根（ECM）真菌从外营养森林树木附近，是这些真菌的避难所后，森林清除的经济重要的森林树木。由于哥斯达黎加是全球植物多样性的热点地区，可能也是热带外生菌根真菌多样性的热点地区。熊果类选择Costaricensis作为这些真菌的避难所植物。C. Arbutoides是哥斯达黎加的科迪勒拉德塔拉曼卡特有的。C.外生真菌的多样性及鉴定arbutoides，其中Quercus costaricensis和C. Arbutoides生长在一起，应进行调查。本项目的第一个目的是研究中国南方红豆杉丛枝状菌根形态类型的分类多样性。arbutoides和比较它与Arctostaphylos uva-ursi的多样性，这是在奥地利高山和亚高山地区的本地人之间。第二个目的是研究勘探类型，以获得有关形态类型功能多样性的信息。第三个目标是利用分子生物学方法鉴定外生菌根真菌。第四，描述了C.熊果类。外生菌根真菌和热带土壤生物学的知识可以提供对气候变化的洞察力。